@misc{indiciaecaec23368a10,
  title = {Basic statistical testing, including interim analysis.},
  author = {D S Guzick},
  year = {1996},
  doi = {10.1055/s-2007-1016321},
  url = {https://pubmed.ncbi.nlm.nih.gov/8796936/},
  note = {Source identifier: 8796936}
}